AMD Radeon R9 M390X vs AMD Radeon R7 M265

VS

AMD Radeon R9 M390X

AMD Radeon R7 M265

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M390X and 2GB VRAM Radeon R7 M265 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390X 's Advantages

Released 1 years and 4 months late

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)

1664 additional rendering cores

AMD Radeon R7 M265 's Advantages

Boost Clock825MHz

Score

Benchmark

FP32 (float)

Radeon R9 M390X +367%

2.961 TFLOPS

Radeon R7 M265

0.633 TFLOPS

Radeon R9 M390X

VS

Radeon R7 M265

Graphics Card

May 2015

Release Date

Jan 2014

Crystal System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

725 MHz

-

Boost Clock

825 MHz

1250 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

28.80GB/s

Render Config

32

Compute Units

6

-

2048

Shading Units

384

128

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

6.600 GPixel/s

92.54 GTexel/s

Texture Rate

19.80 GTexel/s

2.961 TFLOPS

FP16 (half)

-

2.961 TFLOPS

FP32 (float)

633.6 GFLOPS

185.1 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

Opal

Amethyst XT

GPU Variant

Opal XT

GCN 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

5 billion

Transistors

0.95 billion

366 mm²

Die Size

77 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

6.3

Shader Model

6.5 (5.1)

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